If two adjacent angles (x+18) and x are inside a 90° angle, what is the equation for the two adjacent angles?

Answer 1

The sum of two adjacent angles inside a 90° angle is equal to 90°.

So, we have the equation:
(x + 18) + x = 90

Simplifying, we get:
2x + 18 = 90

Subtracting 18 from both sides:
2x = 90 - 18
2x = 72

Dividing both sides by 2:
x = 72/2
x = 36

Therefore, the two adjacent angles are 36° and 54°, since (x+18) = 36 + 18 = 54.